From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 6793 invoked by alias); 5 Feb 2014 11:40:34 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Received: (qmail 6749 invoked by uid 48); 5 Feb 2014 11:40:31 -0000 From: "vincent-gcc at vinc17 dot net" To: gcc-bugs@gcc.gnu.org Subject: [Bug c/59753] Missing -Woverflow warning with signed constant conversion between T_MAX+1 and UT_MAX Date: Wed, 05 Feb 2014 11:40:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c X-Bugzilla-Version: 4.9.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: vincent-gcc at vinc17 dot net X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_status resolution Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2014-02/txt/msg00390.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D59753 Vincent Lef=C3=A8vre changed: What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |UNCONFIRMED Resolution|WORKSFORME |--- --- Comment #2 from Vincent Lef=C3=A8vre --- -Wconversion is used to warn about possibly-suspicious valid code such as: unsigned ui =3D -1; (see the gcc man page), not for overflows. At least there is an inconsisten= cy in the use of warnings. There is no reason why 65535 and 65536 should be treated differently when assigned to a short: neither value is representabl= e in a short. >>From gcc-bugs-return-442634-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Feb 05 11:42:12 2014 Return-Path: Delivered-To: listarch-gcc-bugs@gcc.gnu.org Received: (qmail 7778 invoked by alias); 5 Feb 2014 11:42:12 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Delivered-To: mailing list gcc-bugs@gcc.gnu.org Received: (qmail 7693 invoked by uid 48); 5 Feb 2014 11:42:09 -0000 From: "rguenth at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/60042] vectorizer still does too many dependence tests for himeno:jacobi Date: Wed, 05 Feb 2014 11:42:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: tree-optimization X-Bugzilla-Version: 4.9.0 X-Bugzilla-Keywords: missed-optimization X-Bugzilla-Severity: normal X-Bugzilla-Who: rguenth at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: rguenth at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: dependson Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2014-02/txt/msg00391.txt.bz2 Content-length: 425 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60042 Richard Biener changed: What |Removed |Added ---------------------------------------------------------------------------- Depends on| |23855 --- Comment #8 from Richard Biener --- For analysis of the DRs in outer loops we need to fix PR23855.